You may have already heard of Ozempic or Wegovy – medications that are currently receiving a lot of attention in the treatment of diabetes and obesity. But what exactly makes them so special? Behind both preparations is an active ingredient that is causing a stir in modern medicine: semaglutide.
Whether as an injection or a tablet, for weight loss or blood sugar control – the active ingredient semaglutide seems to be capable of much. But how does it actually work? And what should you look out for if you are thinking about using it?
In this article, you will learn what is behind the term, which preparations contain it, and what the differences are.
What kind of active ingredient is semaglutide?
Semaglutide was originally developed for the treatment of type 2 diabetes, but also shows impressive effects in weight loss.
A modern approach to treating diabetes and obesity
Semaglutide belongs to the drug class of GLP-1 receptor agonists – an innovative group of medications originally developed for people with type 2 diabetes. However, it soon became apparent that the active ingredient can do far more than just regulate blood sugar levels. Semaglutide also achieves considerable success in obesity therapy, as it positively influences eating behavior.
It is precisely this dual function – blood sugar control and weight reduction – that makes semaglutide one of the most exciting active ingredients in modern metabolic medicine.
Mechanism of action: How semaglutide works in the body
The active ingredient semaglutide mimics the hormone GLP-1 (glucagon-like peptide 1) – a natural messenger substance released after meals. GLP-1 ensures that:
- more insulin is released,
- blood sugar levels remain stable,
- and a feeling of satiety occurs earlier.
- In addition, gastric emptying is slowed down, which reduces feelings of hunger and ensures that you eat less overall – completely without conscious restriction.
This targeted intervention in the hormonal regulation of appetite shows clear effects on body weight in clinical studies and is therefore now used specifically in the treatment of overweight and obesity.
Ozempic active ingredient: Semaglutide for diabetes
Ozempic is one of the best-known medications with the active ingredient semaglutide. It was originally approved for people with type 2 diabetes, but has also proven itself as a weight loss aid. Many people therefore ask themselves: "Is Ozempic with the active ingredient semaglutide also suitable for weight loss?"
The answer: Yes – although Ozempic was primarily developed for blood sugar control, many people also benefit from it in terms of weight loss. It is important to note: Ozempic is not a lifestyle product, but a prescription medication with the medical background of diabetes treatment.
Wegovy active ingredient: Higher dosage for targeted weight loss
Semaglutide is also used for weight loss – in a higher dosage than with Ozempic. The corresponding preparation is called Wegovy and is specifically approved for people with obesity. It is also injected once a week.
The Wegovy active ingredient is therefore identical, but the dose makes the difference. Studies showed that patients with Wegovy were able to lose an average of 15% of their body weight – a breakthrough in obesity therapy.
Semaglutide medications: Are obese people taking them away from diabetics?
Since semaglutide medications are increasingly being used for weight loss, the question regularly arises: "Is this fair? Are medications developed for people with diabetes suddenly being 'misused' for obesity?"
This concern is understandable – and deserves a nuanced view.
Two indications, one active ingredient
In fact, semaglutide was originally developed for the treatment of type 2 diabetes with the primary goal of lowering blood sugar. This resulted in a positive side effect: weight loss.
However, scientific studies quickly showed that this weight loss was not just a side effect, but an independent therapeutic benefit.
As a result, Wegovy was developed – a higher-dosage semaglutide preparation specifically for the treatment of obesity, i.e., severe overweight. Wegovy is therefore not a "stolen" diabetes medication, but a specifically approved medication for an independent condition.
Semaglutide: Approval determines purpose – not the target group
Whether you have diabetes or severe obesity – in both cases, these are medically recognized chronic conditions. Semaglutide medications are legally and scientifically approved for both indications – each with its own body of studies, its own dosage, and its own approval process. This means: No one is "taking" anything away from anyone else. Rather, the same active ingredient is used in two different contexts – as has long been common with many other medications.
Supply bottlenecks and ethical questions
Yes, there have been supply bottlenecks for Ozempic with the active ingredient semaglutide in the past, which has led to uncertainty – especially among people with diabetes. The causes for this are varied: global production bottlenecks, unexpectedly high demand, and to some extent off-label use for weight loss. However, the patient group is not the problem here – but rather the distribution and availability by manufacturers and the healthcare system.
Medical guidelines and professionals now actively contribute to ensuring that the medications are used fairly – based on indication, urgency, and benefit.
Medications with semaglutide: Together instead of against each other
Semaglutide medications have the potential to change lives in both diabetes and obesity. It is not about an "either-or," but a "both-and" – under the premise of medically sound, fair care.
If you are personally affected or are wondering whether you "deserve" a medication, rest assured: both conditions are to be taken seriously – and both have the right to effective therapy.
Dosage of semaglutide for weight loss
The start of semaglutide treatment is gradual in order to minimize side effects such as nausea. The typical semaglutide dosage is as follows:
The recommended dosage of semaglutide at a glance:
- Starting dose: 0.25 mg/week
- Increase: The dose is increased every 4 weeks (to 0.5 mg, then 1 mg, 1.7 mg, up to 2.4 mg)
- Goal: The maintenance dose is determined individually
This slow adjustment helps your body get used to the active ingredient – and at the same time increases the success rate. You can read more information about semaglutide dosage here.

Semaglutide injection or tablet: Which form is right for you?
The active ingredient semaglutide is no longer only available as a weekly injection – but recently also as a tablet under the trade name Rybelsus®. But what are the differences between the two forms, and for whom is which variant suitable?
The semaglutide injection: Proven for diabetes and obesity
The best-known form is the semaglutide injection. This is administered subcutaneously (under the skin) once a week. It is considered particularly effective for weight loss and is available in different dosage levels – adapted to therapeutic needs.
In studies, this form was able not only to effectively lower blood sugar levels but also lead to significant weight loss – especially at higher dosages.
The semaglutide tablet: Rybelsus® now also available in Germany
Rybelsus® is the first form of semaglutide that is taken orally. The semaglutide tablet has been approved in the EU since 2020 and is now also on the market in Germany. It was developed for the treatment of type 2 diabetes. The tablet is taken once a day on an empty stomach with a little water, at least 30 minutes before breakfast or other medications.
For many, the tablet is a welcome alternative – especially for people who have reservations about injections. Nevertheless: the tablet form is currently not approved for the treatment of obesity, but exclusively for type 2 diabetes mellitus.
Buying semaglutide active ingredient – What should be considered?
The desire to use semaglutide for weight loss or diabetes is understandable – but before buying, you should know a few important points.
Only with a prescription: Why semaglutide is prescription-only
If you are thinking about buying semaglutide, you should know: it is a prescription medication that should only be used under medical supervision. Buying through online shops without a prescription may seem tempting – but it is illegal in Germany and can be associated with significant health risks.
Approved preparations may only be dispensed after a medical assessment and with a valid prescription. The reason: semaglutide is a highly potent active ingredient that requires individual dosage and regular monitoring. You can find information on the side effects of semaglutide in this article.
Supply bottlenecks and availability
The demand for semaglutide preparations has risen sharply in recent months. There have been repeated supply bottlenecks.
If you are planning to use a corresponding preparation, you should consult your doctor early on and find out about the current availability in pharmacies. Some providers also offer waiting lists or digital prescription services that can make the process easier.
Would you like to learn more about whether semaglutide is right for you or how to get a prescription?
Conclusion: Why semaglutides are so promising
The active ingredient semaglutide is currently revolutionizing obesity and diabetes therapy. Whether semaglutide therapy is used with the Ozempic active ingredient for blood sugar regulation in type 2 diabetes or as the Wegovy active ingredient for targeted weight loss – the successes are scientifically proven and offer many people new hope.
Important: Semaglutide is not a miracle cure, but a medical aid that unfolds its full effect in combination with a healthy lifestyle. If you want to lose weight long-term, semaglutide can be a crucial building block on your journey.
Sources:
- How well does the medication help with weight loss?: Stiftung Gesundheitswissen
- GLP-1 receptor agonist: DocCheck Flexikon
- Semaglutide: ncbi
- Two-year effect of semaglutide: Nature.com
- Rybelsus®: Fachinfo Novo Nordisk



